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Ice Melting Scientific Method

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Ice Melting Scientific Method

🔬 Part 1: Scientific Method Planning

1. Research Question: Complete the question for our investigation:

How do different _____________ affect the _____________ rate of ice?

2. Hypothesis: Which solution do you predict will melt ice the fastest? Circle your choice and explain why.

Tap water (control)

Salt water

Water with isopropyl alcohol

Explanation: ________________________________________________

3. Variables: Identify the key variables in this experiment:

Independent variable (what we change): _________________________

Dependent variable (what we measure): __________________________

Controlled variables (what we keep the same): ___________________

4. Materials needed: Tick the materials required for this investigation:

3 beakers

Ice cubes

Stopwatch

Salt

Isopropyl alcohol

Measuring cylinder

Thermometer

📊 Part 2: Data Collection & Analysis

5. Data Table: Record your melting times (in minutes and seconds):
Solution Type Time to Melt (min:sec)
Tap water (control) _______
Salt water _______
Water + alcohol _______
6. Observations: Describe what you observed during the experiment:
7. Analysis: Which solution melted the ice fastest? Was your hypothesis correct?

Fastest melting solution: _________________________________

Hypothesis correct?

Yes
No

8. Scientific Explanation: Why do you think salt affects the melting rate of ice? (Hint: Think about freezing point)

🎯 Part 3: Conclusions & Real-World Applications

9. Conclusion: Write a conclusion summarising your findings using scientific language:
10. Real-world application: How is this scientific knowledge used in New Zealand? Circle all that apply:

Road salt on icy roads in winter

De-icing aircraft at airports

Food preservation with salt

Making ice cream

11. Improvements: How could you improve this experiment to get more accurate results?
12. Extension question: What other substances could you test to investigate melting rates?

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